[asterisk-biz] Antarctica.

[John Todd]

Orbcomm, to my knowledge, is data-only and slow, asynchronous data at  
that.  I used them extensively for a vehicle tracking company I ran a  
while back.  I have a basement full of various Orbcomm gear, including  
three new GSC100 handhelds - anyone want to make me an offer on it?   
It still works great; in fact, they recently launched a few more birds.

The link to Palmer Station is geostationary, as are most ground  
stations.  I don't know which satellite is used for the Internet/voice  
traffic.  McMurdo and Scott are connected via Telecom New Zealand  
satellite.  See notes herein:

http://en.wikipedia.org/wiki/Scott_Base

I seem to recall someone telling me that there were experiments with  
Asterisk at McMurdo.  More information would be interesting if anyone  
has details.

JT


On Mar 20, 2009, at 2:22 PM, Trixter aka Bret McDanel wrote:

> On Fri, 2009-03-20 at 14:39 -0400, Alex Balashov wrote:
>> This I know;  I was wondering about specifics.
>
>
> I think orbcomm has some coverage of that area as well.  They claimed
> 98% of the earth most of the time and 2 minutes until one pops up in  
> an
> uncovered area.
>
> You can always look for keplerian elements of telecom satellites and  
> see
> which are in polar orbit and which would go down that far.  Some
> geostationary (longer delay not typically used for voice) may be
> reachable with a larger gain antenna (read bigger parabolic).
>
> NASA offers "jtrack" free which is a web based tracking system for
> satellites (they already have the keplerian elements for many up  
> there)
> and I think google earth also has them, so you can look for networks
> that can at least make it reasonable and rule out the rest.
>
> Then its an issue of who has what gear specifically.
>
> I am assuming of course you already ruled out an easier way to find  
> who
> is doing what, using search engines ...
>
> Google seemed to indicate that "telecast fiber systems inc" linked
> antartica for a telecast, perhaps they are using the surplus bandwidth
> for some voice.
>
> There are rumors that GBLX has a satellite link there
> http://www.globalcrossing.com/news/2008/june/05.aspx
>
>
> I am sure a fairly simple google query would return even more
> information, perhaps
> http://www.google.com/search?hl=en&q=antarctica
> +telecommunications&btnG=Search
>
>
>
> -- 
> Trixter http://www.0xdecafbad.com     Bret McDanel
> pgp key: http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x8AE5C721
>
> _______________________________________________
> --Bandwidth and Colocation Provided by http://www.api-digital.com--
>
> asterisk-biz mailing list
> To UNSUBSCRIBE or update options visit:
>   http://lists.digium.com/mailman/listinfo/asterisk-biz

---
John Todd                       email:jtodd at digium.com
Digium, Inc. | Asterisk Open Source Community Director
445 Jan Davis Drive NW -  Huntsville AL 35806  -   USA
direct: +1-256-428-6083         http://www.digium.com/